<template>
  <div>
         <!-- 面包屑导航区域 -->
   <el-breadcrumb separator-class="el-icon-arrow-right">
  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>商品管理</el-breadcrumb-item>
  <el-breadcrumb-item>商品列表</el-breadcrumb-item>
</el-breadcrumb>
  <!-- 卡片视图区域 -->
  <el-card>
    <el-row :gutter="20">
      <el-col :span="8">
        <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
  </el-input>
      </el-col>
      <el-col :span="4">
       <el-button type="primary" @click="goAddpage">添加商品</el-button>
      </el-col>
    </el-row>
    <!-- table表格区域 -->
    <el-table :data="goodsList" border stripe>
      <el-table-column type="index" label="#"></el-table-column>
      <el-table-column label="商品名称" prop="goods_name"></el-table-column>
      <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
      <el-table-column label="商品的重量" prop="goods_weight" width="70px"></el-table-column>
      <el-table-column label="创建时间" prop="add_time" width="140px">
        <template v-slot:default="scoped">
          {{scoped.row.add_time | dataFormat}}
        </template>
      </el-table-column>
      <el-table-column label="操作" width="130px" >
        <template v-slot:default="{row}">
          <el-button type="primary" size="mini" icon="el-icon-edit"></el-button>
          <el-button type="danger" size="mini" icon="el-icon-delete"  @click="remove(row.goods_id)"></el-button>
        </template>
      </el-table-column>
    </el-table>
    <!-- 分页区域 -->
      <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[5, 10, 15, 20]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total" background>
    </el-pagination>
  </el-card>
  </div>
</template>

<script>
export default {
  name: 'L-ist',
  data () {
    return {
      /* 查询参数对象 */
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      /* 商品列表 */
      goodsList: [],
      /* 记录条数总数 */
      total: 0
    }
  },
  methods: {
    /* 根据分页获取对应的商品列表 */
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取商品列表失败')

      this.$message.success('获取商品列表成功')
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    /* 当分页功能的每页显示的数量发生改变就会执行该方法 */
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    /* 当前页码值发生变化 */
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    /* 删除商品 */
    async remove (goodsId) {
      const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') return this.$message.info('已取消删除')
      const { data: res } = await this.$http.delete(`goods/${goodsId}`)
      if (res.meta.status !== 200) return this.$message.error('删除失败')
      this.$message.success('删除成功')
      this.getGoodsList()
    },
    /* 添加商品 */
    goAddpage () {
      this.$router.push('/goods/add')
    }
  },
  created () {
    this.getGoodsList()
  }
}
</script>

<style lang="less" scoped></style>
